[TechAssist] Re: Sony KV-32xbr400 chassis DX1A No Pic, sound ok

  • From: "Al L" <alleathe@xxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Sat, 17 Dec 2005 13:24:15 -0500

Ya got hv,filaments, and audio, and now a schematic. The crt pins should 
tell you where to go next.Perhaps this set blanks completely when vertical 
fails?Tell us when you got smoke out of the pipe!

Al's TV
Al Leatherman
973-361-5796
----- Original Message ----- 
From: "Moutons Electronics L.L.C." <moutons@xxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, December 17, 2005 1:18 PM
Subject: [TechAssist] Re: Sony KV-32xbr400 chassis DX1A No Pic, sound ok


> Jim
>
> That sounds like a possibility but I read the tips on this set and from 
> what
> I can tell if you turn up the G2 you should see there is no vertical. I 
> have
> adjusted the G2 throughout its range and have no reaction, no raster from
> what I can tell. I guess i will have to scope it to be sure but don't
> anticipate on finding a scan loss.
>
> Jason
> Moutons Electronics
>
> ----- Original Message ----- 
> From: <becyn@xxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, December 17, 2005 10:58 AM
> Subject: [TechAssist] Re: Sony KV-32xbr400 chassis DX1A No Pic, sound ok
>
>
>>
>> Probably bad solder on the V-out Ic.
>>
>> Jim McVey
>>
>>
>> ----- Original Message -----
>> From: "Moutons Electronics L.L.C." <moutons@xxxxxxxxxxxxxxxx>
>> Date: Friday, December 16, 2005 9:26 pm
>> Subject: [TechAssist] Sony KV-32xbr400 chassis DX1A No Pic, sound ok
>>
>>> This TV came in with the complaint it was out. I played it for a
>>> week and it played just fine until today. It came on the light
>>> flashed several times like it always does during the warm-up of the
>>> picture tube then stayed on at which time it would usually pop on
>>> the picture, ofcourse this time it didn't. I thought it was out for
>>> a moment till I turned up the volume and it had sound. I look in
>>> the back and it had filament. So I don't know if the customer
>>> missed that or not so I am going with what I found. Every time I
>>> turn it on now I get no pic.
>>> I had a good picture, although not a new picture for this 5 yrs old
>>> set, it was good. Could this Sony be blanking the video like when
>>> the tube ages. I don't get the usual flashes of video like older
>>> ones. This is a Hi-Resolution model, never worked on one of these,
>>> no diagram. Is there a known way to defeat the IK circuit on these
>>> to see if I can get a picture? Does anyone know of a good way to
>>> troubleshoot this model for this problem?
>>>
>>> On older models you are able to turn up the screen to get the
>>> picture to override the IK circuit for a while but on this set I
>>> have varied the screen all the way up and down and all points in
>>> between and have no luck on getting a picture.
>>>
>>>
>>> Jason
>>> Moutons Electronics
>>>
>>>
>>>
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